Grain-door for railway-cars.



No. 742,983. PATENTE'D 1107.3, 1903,

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' GRAINDOOR FOR RAILWAY (mus APPLICATION FILED JUNE 19, 1902. RENEWEDKAEfO; 1903.

No. 742,983. PATENTED NOV. 3, 1903.

- F-1HAGHMANN.

GRAIN DOOR P03, RAILWAY CARS. APPLIOATION FILED JUNE 19 1902. 'B ENEWEDMAR. 30, 1908.

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No. 742,983. PATENTED ov. 3, 1903 F. HAOHMANN.

GRAIN DOOR FOB. RAILWAY CARS;

APPLIOATION FILED JUNE 19, 1902. RENEWED MAR. 30, 1903.

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UNITE STATES Patented November 3, 1903.

PATENT OFFICE.

FREDERICK HAGHMANN, OF ST. PAUL, MINNESOTA, ASSIGNOR TO BRAINARD SJGRIFFIN AND BENJAMIN F. SIMON, OF ST. PAUL, MINNESOTA.

G RAIN-DOOR FOR RAILWAY-CARS.

SPECIFICATION forming part of Letters Patent No. 742,983, dated November3, 1903.

. Application filed June 19,1902. Renewed March 30, 1903. Serial No.150,279. (No model.)

To all whom it may concern.-

Be it known that I, FREDERICK HACHMANN, a citizen of the United States,residing at St. Paul, in the county of Ramsey and State ofMinnesota,have invented certain new and useful Improvements inGrain-Doors for Railway-Oars, of which the following is a specification.

My invention relates to improvements in grain-doors for railway-cars,which while securely holding the grain within the car when closed mayyet be readily and easily opened out of the way. I accomplish theseresults by means of the features of construction and combinationhereinafter particularly described and claimed.

Inthe accompanying drawings,forming part of this specification, Figure1isa side elevation of part of a box-car, showing my improved grain-doorin closed position as seen from the outside of the car. Fig. 2 is alongitudinal vertical section of the same, showing the grain-door asseen from within the car. Fig. 3 is a vertical section taken on line a:m of Fig. 2. Fig. 4 is a horizontal section taken on line y y of Fig. 2,showing one door open and one closed; and Fig. 5 is avertical section ofpart of the car, showing one of the grain-doors in open position and theother supported under the roof of the car.

In the drawings, A represents the side of the box-car, and B theordinary door-casing. Fitted within the door-casing are two similardoors 0 and 0', supported by means of straps 2 and 2, having hingeconnection 3 and 3 with plates 4 and 4, secured to the door by means ofrivets or bolts 5. The upper ends of the straps are formed with balls 6and 6, respectively, which fit within the fingers 7 and 7 of thebrackets 8 and 8. Hinged to the upperends of the doors 0 and O by hinges9 are the extensions 10 and 10. Secured to the bottoms of the doors 0and 0, near their outer edges, are plates 11 and 11, carrying downwardlyprojecting trunnions 12 and 12, projecting into openings 13 and 13 inthe floor of the car, as shown in Fig. 2. The doors are adapted to beheld closed, as shown in Fig. 1, by a bar 14, having pivotal support 15upon one of the doorsand adapted to be turned into looking engagementwith the clips 16 and 16, secured upon the outside of the doors. Hingedin plates 17 and 17 upon the upper ends of the doors adjacent to theinner edges are the rods 18 and 18, having sliding connection with rods19 and 19. The ends of the rods 19 and 19 are formed with eyes 20 and20, adapted to receive the hooks 21 and 21, projecting inwardly from theupper horizontal crossbeam of the car for the purpose hereinafter setforth.

In use with a car filled with grain the doors would be secured in theclosed position shown in Fig. 1, the upward extensions 10 and 10 beingheld raised by the pressure of the grain. When it is desired to emptythe car of its contents, the bar 14 is adapted to be turned to releasethe doors, when the weight of the grain against the doors will turn themupon their trunnions 12' and 12 into open position, as illustrated inFig. 5, allowing the outflow of the grain through the door-opening. Whenthe car is empty and it is desired to carry the doors out of thedoor-opening and support them at the top of the car, the doors may beeither secured together by the bar 14 and in this position carried tothe top of the car or they may be separately carried. Assuming that thedoors are to be separately carried to the roof of the car the rods 18and 19 and 18 and 19 would be extended and hooked over the hooks 21 and21, as shown in Fig. 2. The extensions 10 and 10 would preferably beturned against the body of the door and secured underneath the hooks 22and 22. The doors would then be swung upward underneath the roof the carand the hooks 23, which project downwardly from the upper beams of thecar, he passed through the eyes 24, secured to the upper ends of thedoors. The doors would thus be held up under the roof of the caruntil'again taken down for use. It will be seen that in carrying thedoors singly to raised position the rods 18 and 19 and 18 and 19 serveas supports for'the inner sides of the doors, the straps 2 and 2supporting the outer sides of the doors. If the doors were held securedtogether by the bar 14 when being carried to raised position it would beevident that it would not be necessary to use the rods and they couldbeleft in the positions shown in Fig. 1.

Having now described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. The combination with a car, of a graindoo'r having pivotal support inthe floor of the car, and an upwardly-projecting strap having hingeconnection with said door, said strap having swing-support above saiddoor.

2. The combination with a car provided with a door-opening, of acar-door fitted in said opening and having pivotal support in the floorof the car, a hinge connection between said door and the upper frameworkof the car, and means for holding said door in suspended positionunderneath the roof of the car.

3. The combination with a car formed with a door-opening, of a doorfitted in said opening and having pivotal support in the floor of thecar, an upwardly-projecting strap having hinge connection with saiddoor, and swingsupport on the framework above the door, and means 'forsupporting said door in raised position underneath the roof of the car.

4. The combination with a car formed with a door-opening, of a doorfitted in said opening, a pivot projecting downwardly from said door andfitted in an opening in the floor, a vertical strap having hingeconnection with said door, a ball-and-socket support for said strap onthe upper framework of the car, and

.means for holding said door in raised position underneath the roof ofthe car.-

5. The combination with a car formed with adoor-opening, of a pair ofdoors fitted in said opening, pivotal connection between each of saiddoors and the floorof the car, swing-support for said doors, and meansfor supporting said doors in raised position underneath the roof of thecar.

6. The combination with a car formed with a door-opening, of a pair ofdoors fitted in said opening, a pivotal connection between the outer endof each door and the floor of the car, independent swing-supports forsaid doors, and means for holding said doors supported in raisedposition underneath thereof of the car.

7. The combination with a car formed with a door-opening, of a pair ofdoors fitted in said opening, straps having hinge connection with theouter ends of said doors and having swingsupport in the framework of thecar above said doors, telescoping rods having hinge connection with theinner ends of said doors and means for detachable support to theframework above said doors,'and means for holding said doors insuspended position underneath the roof of the car.

8. The combination with a car-formed with a door-opening, a pair ofdoors fitted in said opening, upwardly-projecting hinged extensions forsaid doors, a pivotal connection between the outer end of each door andthe floor of the car, independent swing-supports for said doors, andmeans for holding said doors in suspended position underneath the roofof the car.

9. The combination with a car formed with a door-opening, of a pair ofdoors fitted in said opening, upwardly-extending supports having hingeconnection with the upper ends of said doors and rotatable swing-supportupon the framework above said doors, means for connecting the inner endsof the doors with the framework above the same, and means for holdingthe doors in suspended position underneath the roof of the car.

10. The combination with a car formed with a door-opening, of a pair ofdoors fitted in said opening, means for securing said doors together, apivotal connection between the outer end of each door and the frameworkbelow the same, rotatable swing-support for the outer end of each door,and means for supporting said doors in suspended position underneath theroof of thecar.

In testimony whereof I aftix my signature in presence of two witnesses.

FREDERICK HACHMANN.

